The way Brooklyn fans chant “Broooooklyn… Brooooooklyn” is that it sounds like a “mock” chant and that they’re taunting their own team.
Remember Darryl Strawberry? Or at least the episode of the simpsons ‘homer at bat’. “Daaaaaaarryl….Daaaaarryl” (tear trickles down his eye)

Real Nets fans reside in Jersey, in Brooklyn many are pretending to be cool, down with the it crowd. Wearing the Nets logo, tough.. Every other arena with exception of Atlanta is exciting, but not in Brooklyn.